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Tech Forum : compression

- BMW E21 Community
   - Tech Forum
      - compression
ArnZ   Posted Sunday, Nov 5th 10:37am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 28
   
Qld, Australia
BMW 323i
hey guys

i looked at a donar car yesterday and i did the usual compression test on each cyclinder, it is a 323i so it has the m20b23 engine, 5 cyclinders hav a compression of 175psi and the other 1 has only 100 psi. engine runs smooth, no smoke coming out so im wondering if this is still a good engine. the guy is checking all the valve clearences tomoz but if that doesnt fix it shud i still buy it??

regards Arnz

imaradiostar   Posted Monday, Nov 6th 10:04pm [Edit] [Quote] [IMS] [View car]
Member
Post nr. 934
   
Nashville, TN
81 323i, 82 525i, 85 524td, 90 535i
having a deviation from cylinder to cylinder of over 10% is a bad sign- I'd steer clear.

jamie

ArnZ   Posted Tuesday, Nov 7th 3:41pm [Edit] [Quote] [IMS] [View car]
Member
Post nr. 29
   
Qld, Australia
BMW 323i
the guy selling the car has fixed the problem so its all sweet guys

the guy buying the car is me finally a better engine,gearbox,seat,taillight,etc for me lol

thanks guys


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